In a population of 3 1/4 million people, 2115000 are under the age of 16. calculate the percentage, to two decimal places, of the population who are under the age of 16

So what we need to do is divide the number of people under 16 by the number of the entire population:



first, let's get rid of the 0s:



now, we can divide:
 this is 0.6507....

in order to make this into a percentage, we multiply by 100%:

0.6507*100%=65.07%

the answer is: 65 % (quite a lot!!!)